/* Id: mdoc_html.c,v 1.342 2021/03/30 19:26:20 schwarze Exp */

/* Id: mdoc_html.c,v 1.342 2021/03/30 19:26:20 schwarze Exp */
/*
* Copyright (c) 2014-2021 Ingo Schwarze <[email protected]>
* Copyright (c) 2008-2011, 2014 Kristaps Dzonsons <[email protected]>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
* HTML formatter for mdoc(7) used by mandoc(1).
*/
#include "config.h"

#include <sys/types.h>

#include <assert.h>
#include <ctype.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>

#include "mandoc_aux.h"
#include "mandoc.h"
#include "roff.h"
#include "mdoc.h"
#include "out.h"
#include "html.h"
#include "main.h"

#define MDOC_ARGS const struct roff_meta *meta, \
struct roff_node *n, \
struct html *h

#ifndef MIN
#define MIN(a,b) ((/*CONSTCOND*/(a)<(b))?(a):(b))
#endif

struct mdoc_html_act {
int (*pre)(MDOC_ARGS);
void (*post)(MDOC_ARGS);
};

static void print_mdoc_head(const struct roff_meta *,
struct html *);
static void print_mdoc_node(MDOC_ARGS);
static void print_mdoc_nodelist(MDOC_ARGS);
static void synopsis_pre(struct html *, struct roff_node *);

static void mdoc_root_post(const struct roff_meta *,
struct html *);
static int mdoc_root_pre(const struct roff_meta *,
struct html *);

static void mdoc__x_post(MDOC_ARGS);
static int mdoc__x_pre(MDOC_ARGS);
static int mdoc_abort_pre(MDOC_ARGS);
static int mdoc_ad_pre(MDOC_ARGS);
static int mdoc_an_pre(MDOC_ARGS);
static int mdoc_ap_pre(MDOC_ARGS);
static int mdoc_ar_pre(MDOC_ARGS);
static int mdoc_bd_pre(MDOC_ARGS);
static int mdoc_bf_pre(MDOC_ARGS);
static void mdoc_bk_post(MDOC_ARGS);
static int mdoc_bk_pre(MDOC_ARGS);
static int mdoc_bl_pre(MDOC_ARGS);
static int mdoc_cd_pre(MDOC_ARGS);
static int mdoc_code_pre(MDOC_ARGS);
static int mdoc_d1_pre(MDOC_ARGS);
static int mdoc_fa_pre(MDOC_ARGS);
static int mdoc_fd_pre(MDOC_ARGS);
static int mdoc_fl_pre(MDOC_ARGS);
static int mdoc_fn_pre(MDOC_ARGS);
static int mdoc_ft_pre(MDOC_ARGS);
static int mdoc_em_pre(MDOC_ARGS);
static void mdoc_eo_post(MDOC_ARGS);
static int mdoc_eo_pre(MDOC_ARGS);
static int mdoc_ex_pre(MDOC_ARGS);
static void mdoc_fo_post(MDOC_ARGS);
static int mdoc_fo_pre(MDOC_ARGS);
static int mdoc_igndelim_pre(MDOC_ARGS);
static int mdoc_in_pre(MDOC_ARGS);
static int mdoc_it_pre(MDOC_ARGS);
static int mdoc_lb_pre(MDOC_ARGS);
static int mdoc_lk_pre(MDOC_ARGS);
static int mdoc_mt_pre(MDOC_ARGS);
static int mdoc_nd_pre(MDOC_ARGS);
static int mdoc_nm_pre(MDOC_ARGS);
static int mdoc_no_pre(MDOC_ARGS);
static int mdoc_ns_pre(MDOC_ARGS);
static int mdoc_pa_pre(MDOC_ARGS);
static void mdoc_pf_post(MDOC_ARGS);
static int mdoc_pp_pre(MDOC_ARGS);
static void mdoc_quote_post(MDOC_ARGS);
static int mdoc_quote_pre(MDOC_ARGS);
static int mdoc_rs_pre(MDOC_ARGS);
static int mdoc_sh_pre(MDOC_ARGS);
static int mdoc_skip_pre(MDOC_ARGS);
static int mdoc_sm_pre(MDOC_ARGS);
static int mdoc_ss_pre(MDOC_ARGS);
static int mdoc_st_pre(MDOC_ARGS);
static int mdoc_sx_pre(MDOC_ARGS);
static int mdoc_sy_pre(MDOC_ARGS);
static int mdoc_tg_pre(MDOC_ARGS);
static int mdoc_va_pre(MDOC_ARGS);
static int mdoc_vt_pre(MDOC_ARGS);
static int mdoc_xr_pre(MDOC_ARGS);
static int mdoc_xx_pre(MDOC_ARGS);

static const struct mdoc_html_act mdoc_html_acts[MDOC_MAX - MDOC_Dd] = {
{NULL, NULL}, /* Dd */
{NULL, NULL}, /* Dt */
{NULL, NULL}, /* Os */
{mdoc_sh_pre, NULL }, /* Sh */
{mdoc_ss_pre, NULL }, /* Ss */
{mdoc_pp_pre, NULL}, /* Pp */
{mdoc_d1_pre, NULL}, /* D1 */
{mdoc_d1_pre, NULL}, /* Dl */
{mdoc_bd_pre, NULL}, /* Bd */
{NULL, NULL}, /* Ed */
{mdoc_bl_pre, NULL}, /* Bl */
{NULL, NULL}, /* El */
{mdoc_it_pre, NULL}, /* It */
{mdoc_ad_pre, NULL}, /* Ad */
{mdoc_an_pre, NULL}, /* An */
{mdoc_ap_pre, NULL}, /* Ap */
{mdoc_ar_pre, NULL}, /* Ar */
{mdoc_cd_pre, NULL}, /* Cd */
{mdoc_code_pre, NULL}, /* Cm */
{mdoc_code_pre, NULL}, /* Dv */
{mdoc_code_pre, NULL}, /* Er */
{mdoc_code_pre, NULL}, /* Ev */
{mdoc_ex_pre, NULL}, /* Ex */
{mdoc_fa_pre, NULL}, /* Fa */
{mdoc_fd_pre, NULL}, /* Fd */
{mdoc_fl_pre, NULL}, /* Fl */
{mdoc_fn_pre, NULL}, /* Fn */
{mdoc_ft_pre, NULL}, /* Ft */
{mdoc_code_pre, NULL}, /* Ic */
{mdoc_in_pre, NULL}, /* In */
{mdoc_code_pre, NULL}, /* Li */
{mdoc_nd_pre, NULL}, /* Nd */
{mdoc_nm_pre, NULL}, /* Nm */
{mdoc_quote_pre, mdoc_quote_post}, /* Op */
{mdoc_abort_pre, NULL}, /* Ot */
{mdoc_pa_pre, NULL}, /* Pa */
{mdoc_ex_pre, NULL}, /* Rv */
{mdoc_st_pre, NULL}, /* St */
{mdoc_va_pre, NULL}, /* Va */
{mdoc_vt_pre, NULL}, /* Vt */
{mdoc_xr_pre, NULL}, /* Xr */
{mdoc__x_pre, mdoc__x_post}, /* %A */
{mdoc__x_pre, mdoc__x_post}, /* %B */
{mdoc__x_pre, mdoc__x_post}, /* %D */
{mdoc__x_pre, mdoc__x_post}, /* %I */
{mdoc__x_pre, mdoc__x_post}, /* %J */
{mdoc__x_pre, mdoc__x_post}, /* %N */
{mdoc__x_pre, mdoc__x_post}, /* %O */
{mdoc__x_pre, mdoc__x_post}, /* %P */
{mdoc__x_pre, mdoc__x_post}, /* %R */
{mdoc__x_pre, mdoc__x_post}, /* %T */
{mdoc__x_pre, mdoc__x_post}, /* %V */
{NULL, NULL}, /* Ac */
{mdoc_quote_pre, mdoc_quote_post}, /* Ao */
{mdoc_quote_pre, mdoc_quote_post}, /* Aq */
{mdoc_xx_pre, NULL}, /* At */
{NULL, NULL}, /* Bc */
{mdoc_bf_pre, NULL}, /* Bf */
{mdoc_quote_pre, mdoc_quote_post}, /* Bo */
{mdoc_quote_pre, mdoc_quote_post}, /* Bq */
{mdoc_xx_pre, NULL}, /* Bsx */
{mdoc_xx_pre, NULL}, /* Bx */
{mdoc_skip_pre, NULL}, /* Db */
{NULL, NULL}, /* Dc */
{mdoc_quote_pre, mdoc_quote_post}, /* Do */
{mdoc_quote_pre, mdoc_quote_post}, /* Dq */
{NULL, NULL}, /* Ec */ /* FIXME: no space */
{NULL, NULL}, /* Ef */
{mdoc_em_pre, NULL}, /* Em */
{mdoc_eo_pre, mdoc_eo_post}, /* Eo */
{mdoc_xx_pre, NULL}, /* Fx */
{mdoc_no_pre, NULL}, /* Ms */
{mdoc_no_pre, NULL}, /* No */
{mdoc_ns_pre, NULL}, /* Ns */
{mdoc_xx_pre, NULL}, /* Nx */
{mdoc_xx_pre, NULL}, /* Ox */
{NULL, NULL}, /* Pc */
{mdoc_igndelim_pre, mdoc_pf_post}, /* Pf */
{mdoc_quote_pre, mdoc_quote_post}, /* Po */
{mdoc_quote_pre, mdoc_quote_post}, /* Pq */
{NULL, NULL}, /* Qc */
{mdoc_quote_pre, mdoc_quote_post}, /* Ql */
{mdoc_quote_pre, mdoc_quote_post}, /* Qo */
{mdoc_quote_pre, mdoc_quote_post}, /* Qq */
{NULL, NULL}, /* Re */
{mdoc_rs_pre, NULL}, /* Rs */
{NULL, NULL}, /* Sc */
{mdoc_quote_pre, mdoc_quote_post}, /* So */
{mdoc_quote_pre, mdoc_quote_post}, /* Sq */
{mdoc_sm_pre, NULL}, /* Sm */
{mdoc_sx_pre, NULL}, /* Sx */
{mdoc_sy_pre, NULL}, /* Sy */
{NULL, NULL}, /* Tn */
{mdoc_xx_pre, NULL}, /* Ux */
{NULL, NULL}, /* Xc */
{NULL, NULL}, /* Xo */
{mdoc_fo_pre, mdoc_fo_post}, /* Fo */
{NULL, NULL}, /* Fc */
{mdoc_quote_pre, mdoc_quote_post}, /* Oo */
{NULL, NULL}, /* Oc */
{mdoc_bk_pre, mdoc_bk_post}, /* Bk */
{NULL, NULL}, /* Ek */
{NULL, NULL}, /* Bt */
{NULL, NULL}, /* Hf */
{mdoc_em_pre, NULL}, /* Fr */
{NULL, NULL}, /* Ud */
{mdoc_lb_pre, NULL}, /* Lb */
{mdoc_abort_pre, NULL}, /* Lp */
{mdoc_lk_pre, NULL}, /* Lk */
{mdoc_mt_pre, NULL}, /* Mt */
{mdoc_quote_pre, mdoc_quote_post}, /* Brq */
{mdoc_quote_pre, mdoc_quote_post}, /* Bro */
{NULL, NULL}, /* Brc */
{mdoc__x_pre, mdoc__x_post}, /* %C */
{mdoc_skip_pre, NULL}, /* Es */
{mdoc_quote_pre, mdoc_quote_post}, /* En */
{mdoc_xx_pre, NULL}, /* Dx */
{mdoc__x_pre, mdoc__x_post}, /* %Q */
{mdoc__x_pre, mdoc__x_post}, /* %U */
{NULL, NULL}, /* Ta */
{mdoc_tg_pre, NULL}, /* Tg */
};

/*
* See the same function in mdoc_term.c for documentation.
*/
static void
synopsis_pre(struct html *h, struct roff_node *n)
{
struct roff_node *np;

if ((n->flags & NODE_SYNPRETTY) == 0 ||
(np = roff_node_prev(n)) == NULL)
return;

if (np->tok == n->tok &&
MDOC_Fo != n->tok &&
MDOC_Ft != n->tok &&
MDOC_Fn != n->tok) {
print_otag(h, TAG_BR, "");
return;
}

switch (np->tok) {
case MDOC_Fd:
case MDOC_Fn:
case MDOC_Fo:
case MDOC_In:
case MDOC_Vt:
break;
case MDOC_Ft:
if (n->tok != MDOC_Fn && n->tok != MDOC_Fo)
break;
/* FALLTHROUGH */
default:
print_otag(h, TAG_BR, "");
return;
}
html_close_paragraph(h);
print_otag(h, TAG_P, "c", "Pp");
}

void
html_mdoc(void *arg, const struct roff_meta *mdoc)
{
struct html *h;
struct roff_node *n;
struct tag *t;

h = (struct html *)arg;
n = mdoc->first->child;

if ((h->oflags & HTML_FRAGMENT) == 0) {
print_gen_decls(h);
print_otag(h, TAG_HTML, "");
if (n != NULL && n->type == ROFFT_COMMENT)
print_gen_comment(h, n);
t = print_otag(h, TAG_HEAD, "");
print_mdoc_head(mdoc, h);
print_tagq(h, t);
print_otag(h, TAG_BODY, "");
}

mdoc_root_pre(mdoc, h);
t = print_otag(h, TAG_DIV, "c", "manual-text");
print_mdoc_nodelist(mdoc, n, h);
print_tagq(h, t);
mdoc_root_post(mdoc, h);
print_tagq(h, NULL);
}

static void
print_mdoc_head(const struct roff_meta *meta, struct html *h)
{
char *cp;

print_gen_head(h);

if (meta->arch != NULL && meta->msec != NULL)
mandoc_asprintf(&cp, "%s(%s) (%s)", meta->title,
meta->msec, meta->arch);
else if (meta->msec != NULL)
mandoc_asprintf(&cp, "%s(%s)", meta->title, meta->msec);
else if (meta->arch != NULL)
mandoc_asprintf(&cp, "%s (%s)", meta->title, meta->arch);
else
cp = mandoc_strdup(meta->title);

print_otag(h, TAG_TITLE, "");
print_text(h, cp);
free(cp);
}

static void
print_mdoc_nodelist(MDOC_ARGS)
{

while (n != NULL) {
print_mdoc_node(meta, n, h);
n = n->next;
}
}

static void
print_mdoc_node(MDOC_ARGS)
{
struct tag *t;
int child;

if (n->type == ROFFT_COMMENT || n->flags & NODE_NOPRT)
return;

if ((n->flags & NODE_NOFILL) == 0)
html_fillmode(h, ROFF_fi);
else if (html_fillmode(h, ROFF_nf) == ROFF_nf &&
n->tok != ROFF_fi && n->flags & NODE_LINE)
print_endline(h);

child = 1;
n->flags &= ~NODE_ENDED;
switch (n->type) {
case ROFFT_TEXT:
if (n->flags & NODE_LINE) {
switch (*n->string) {
case '\0':
h->col = 1;
print_endline(h);
return;
case ' ':
if ((h->flags & HTML_NONEWLINE) == 0 &&
(n->flags & NODE_NOFILL) == 0)
print_otag(h, TAG_BR, "");
break;
default:
break;
}
}
t = h->tag;
t->refcnt++;
if (n->flags & NODE_DELIMC)
h->flags |= HTML_NOSPACE;
if (n->flags & NODE_HREF)
print_tagged_text(h, n->string, n);
else
print_text(h, n->string);
if (n->flags & NODE_DELIMO)
h->flags |= HTML_NOSPACE;
break;
case ROFFT_EQN:
t = h->tag;
t->refcnt++;
print_eqn(h, n->eqn);
break;
case ROFFT_TBL:
/*
* This will take care of initialising all of the table
* state data for the first table, then tearing it down
* for the last one.
*/
print_tbl(h, n->span);
return;
default:
/*
* Close out the current table, if it's open, and unset
* the "meta" table state. This will be reopened on the
* next table element.
*/
if (h->tblt != NULL)
print_tblclose(h);
assert(h->tblt == NULL);
t = h->tag;
t->refcnt++;
if (n->tok < ROFF_MAX) {
roff_html_pre(h, n);
t->refcnt--;
print_stagq(h, t);
return;
}
assert(n->tok >= MDOC_Dd && n->tok < MDOC_MAX);
if (mdoc_html_acts[n->tok - MDOC_Dd].pre != NULL &&
(n->end == ENDBODY_NOT || n->child != NULL))
child = (*mdoc_html_acts[n->tok - MDOC_Dd].pre)(meta,
n, h);
break;
}

if (h->flags & HTML_KEEP && n->flags & NODE_LINE) {
h->flags &= ~HTML_KEEP;
h->flags |= HTML_PREKEEP;
}

if (child && n->child != NULL)
print_mdoc_nodelist(meta, n->child, h);

t->refcnt--;
print_stagq(h, t);

switch (n->type) {
case ROFFT_TEXT:
case ROFFT_EQN:
break;
default:
if (mdoc_html_acts[n->tok - MDOC_Dd].post == NULL ||
n->flags & NODE_ENDED)
break;
(*mdoc_html_acts[n->tok - MDOC_Dd].post)(meta, n, h);
if (n->end != ENDBODY_NOT)
n->body->flags |= NODE_ENDED;
break;
}
}

static void
mdoc_root_post(const struct roff_meta *meta, struct html *h)
{
struct tag *t, *tt;

t = print_otag(h, TAG_TABLE, "c", "foot");
tt = print_otag(h, TAG_TR, "");

print_otag(h, TAG_TD, "c", "foot-date");
print_text(h, meta->date);
print_stagq(h, tt);

print_otag(h, TAG_TD, "c", "foot-os");
print_text(h, meta->os);
print_tagq(h, t);
}

static int
mdoc_root_pre(const struct roff_meta *meta, struct html *h)
{
struct tag *t, *tt;
char *volume, *title;

if (NULL == meta->arch)
volume = mandoc_strdup(meta->vol);
else
mandoc_asprintf(&volume, "%s (%s)",
meta->vol, meta->arch);

if (NULL == meta->msec)
title = mandoc_strdup(meta->title);
else
mandoc_asprintf(&title, "%s(%s)",
meta->title, meta->msec);

t = print_otag(h, TAG_TABLE, "c", "head");
tt = print_otag(h, TAG_TR, "");

print_otag(h, TAG_TD, "c", "head-ltitle");
print_text(h, title);
print_stagq(h, tt);

print_otag(h, TAG_TD, "c", "head-vol");
print_text(h, volume);
print_stagq(h, tt);

print_otag(h, TAG_TD, "c", "head-rtitle");
print_text(h, title);
print_tagq(h, t);

free(title);
free(volume);
return 1;
}

static int
mdoc_code_pre(MDOC_ARGS)
{
print_otag_id(h, TAG_CODE, roff_name[n->tok], n);
return 1;
}

static int
mdoc_sh_pre(MDOC_ARGS)
{
struct roff_node *sn, *subn;
struct tag *t, *tsec, *tsub;
char *id;
int sc;

switch (n->type) {
case ROFFT_BLOCK:
html_close_paragraph(h);
if ((h->oflags & HTML_TOC) == 0 ||
h->flags & HTML_TOCDONE ||
n->sec <= SEC_SYNOPSIS) {
print_otag(h, TAG_SECTION, "c", "Sh");
break;
}
h->flags |= HTML_TOCDONE;
sc = 0;
for (sn = n->next; sn != NULL; sn = sn->next)
if (sn->sec == SEC_CUSTOM)
if (++sc == 2)
break;
if (sc < 2)
break;
t = print_otag(h, TAG_H1, "c", "Sh");
print_text(h, "TABLE OF CONTENTS");
print_tagq(h, t);
t = print_otag(h, TAG_UL, "c", "Bl-compact");
for (sn = n; sn != NULL; sn = sn->next) {
tsec = print_otag(h, TAG_LI, "");
id = html_make_id(sn->head, 0);
tsub = print_otag(h, TAG_A, "hR", id);
free(id);
print_mdoc_nodelist(meta, sn->head->child, h);
print_tagq(h, tsub);
tsub = NULL;
for (subn = sn->body->child; subn != NULL;
subn = subn->next) {
if (subn->tok != MDOC_Ss)
continue;
id = html_make_id(subn->head, 0);
if (id == NULL)
continue;
if (tsub == NULL)
print_otag(h, TAG_UL,
"c", "Bl-compact");
tsub = print_otag(h, TAG_LI, "");
print_otag(h, TAG_A, "hR", id);
free(id);
print_mdoc_nodelist(meta,
subn->head->child, h);
print_tagq(h, tsub);
}
print_tagq(h, tsec);
}
print_tagq(h, t);
print_otag(h, TAG_SECTION, "c", "Sh");
break;
case ROFFT_HEAD:
print_otag_id(h, TAG_H1, "Sh", n);
break;
case ROFFT_BODY:
if (n->sec == SEC_AUTHORS)
h->flags &= ~(HTML_SPLIT|HTML_NOSPLIT);
break;
default:
break;
}
return 1;
}

static int
mdoc_ss_pre(MDOC_ARGS)
{
switch (n->type) {
case ROFFT_BLOCK:
html_close_paragraph(h);
print_otag(h, TAG_SECTION, "c", "Ss");
break;
case ROFFT_HEAD:
print_otag_id(h, TAG_H2, "Ss", n);
break;
case ROFFT_BODY:
break;
default:
abort();
}
return 1;
}

static int
mdoc_fl_pre(MDOC_ARGS)
{
struct roff_node *nn;

print_otag_id(h, TAG_CODE, "Fl", n);
print_text(h, "\\-");
if (n->child != NULL ||
((nn = roff_node_next(n)) != NULL &&
nn->type != ROFFT_TEXT &&
(nn->flags & NODE_LINE) == 0))
h->flags |= HTML_NOSPACE;

return 1;
}

static int
mdoc_nd_pre(MDOC_ARGS)
{
switch (n->type) {
case ROFFT_BLOCK:
return 1;
case ROFFT_HEAD:
return 0;
case ROFFT_BODY:
break;
default:
abort();
}
print_text(h, "\\(em");
print_otag(h, TAG_SPAN, "c", "Nd");
return 1;
}

static int
mdoc_nm_pre(MDOC_ARGS)
{
switch (n->type) {
case ROFFT_BLOCK:
break;
case ROFFT_HEAD:
print_otag(h, TAG_TD, "");
/* FALLTHROUGH */
case ROFFT_ELEM:
print_otag(h, TAG_CODE, "c", "Nm");
return 1;
case ROFFT_BODY:
print_otag(h, TAG_TD, "");
return 1;
default:
abort();
}
html_close_paragraph(h);
synopsis_pre(h, n);
print_otag(h, TAG_TABLE, "c", "Nm");
print_otag(h, TAG_TR, "");
return 1;
}

static int
mdoc_xr_pre(MDOC_ARGS)
{
if (NULL == n->child)
return 0;

if (h->base_man1)
print_otag(h, TAG_A, "chM", "Xr",
n->child->string, n->child->next == NULL ?
NULL : n->child->next->string);
else
print_otag(h, TAG_A, "c", "Xr");

n = n->child;
print_text(h, n->string);

if (NULL == (n = n->next))
return 0;

h->flags |= HTML_NOSPACE;
print_text(h, "(");
h->flags |= HTML_NOSPACE;
print_text(h, n->string);
h->flags |= HTML_NOSPACE;
print_text(h, ")");
return 0;
}

static int
mdoc_tg_pre(MDOC_ARGS)
{
char *id;

if ((id = html_make_id(n, 1)) != NULL) {
print_tagq(h, print_otag(h, TAG_MARK, "i", id));
free(id);
}
return 0;
}

static int
mdoc_ns_pre(MDOC_ARGS)
{

if ( ! (NODE_LINE & n->flags))
h->flags |= HTML_NOSPACE;
return 1;
}

static int
mdoc_ar_pre(MDOC_ARGS)
{
print_otag(h, TAG_VAR, "c", "Ar");
return 1;
}

static int
mdoc_xx_pre(MDOC_ARGS)
{
print_otag(h, TAG_SPAN, "c", "Ux");
return 1;
}

static int
mdoc_it_pre(MDOC_ARGS)
{
const struct roff_node *bl;
enum mdoc_list type;

bl = n->parent;
while (bl->tok != MDOC_Bl)
bl = bl->parent;
type = bl->norm->Bl.type;

switch (type) {
case LIST_bullet:
case LIST_dash:
case LIST_hyphen:
case LIST_item:
case LIST_enum:
switch (n->type) {
case ROFFT_HEAD:
return 0;
case ROFFT_BODY:
print_otag_id(h, TAG_LI, NULL, n);
break;
default:
break;
}
break;
case LIST_diag:
case LIST_hang:
case LIST_inset:
case LIST_ohang:
switch (n->type) {
case ROFFT_HEAD:
print_otag_id(h, TAG_DT, NULL, n);
break;
case ROFFT_BODY:
print_otag(h, TAG_DD, "");
break;
default:
break;
}
break;
case LIST_tag:
switch (n->type) {
case ROFFT_HEAD:
print_otag_id(h, TAG_DT, NULL, n);
break;
case ROFFT_BODY:
if (n->child == NULL) {
print_otag(h, TAG_DD, "s", "width", "auto");
print_text(h, "\\ ");
} else
print_otag(h, TAG_DD, "");
break;
default:
break;
}
break;
case LIST_column:
switch (n->type) {
case ROFFT_HEAD:
break;
case ROFFT_BODY:
print_otag(h, TAG_TD, "");
break;
default:
print_otag_id(h, TAG_TR, NULL, n);
}
default:
break;
}

return 1;
}

static int
mdoc_bl_pre(MDOC_ARGS)
{
char cattr[32];
struct mdoc_bl *bl;
enum htmltag elemtype;

switch (n->type) {
case ROFFT_BLOCK:
html_close_paragraph(h);
break;
case ROFFT_HEAD:
return 0;
case ROFFT_BODY:
return 1;
default:
abort();
}

bl = &n->norm->Bl;
switch (bl->type) {
case LIST_bullet:
elemtype = TAG_UL;
(void)strlcpy(cattr, "Bl-bullet", sizeof(cattr));
break;
case LIST_dash:
case LIST_hyphen:
elemtype = TAG_UL;
(void)strlcpy(cattr, "Bl-dash", sizeof(cattr));
break;
case LIST_item:
elemtype = TAG_UL;
(void)strlcpy(cattr, "Bl-item", sizeof(cattr));
break;
case LIST_enum:
elemtype = TAG_OL;
(void)strlcpy(cattr, "Bl-enum", sizeof(cattr));
break;
case LIST_diag:
elemtype = TAG_DL;
(void)strlcpy(cattr, "Bl-diag", sizeof(cattr));
break;
case LIST_hang:
elemtype = TAG_DL;
(void)strlcpy(cattr, "Bl-hang", sizeof(cattr));
break;
case LIST_inset:
elemtype = TAG_DL;
(void)strlcpy(cattr, "Bl-inset", sizeof(cattr));
break;
case LIST_ohang:
elemtype = TAG_DL;
(void)strlcpy(cattr, "Bl-ohang", sizeof(cattr));
break;
case LIST_tag:
if (bl->offs)
print_otag(h, TAG_DIV, "c", "Bd-indent");
print_otag_id(h, TAG_DL,
bl->comp ? "Bl-tag Bl-compact" : "Bl-tag", n->body);
return 1;
case LIST_column:
elemtype = TAG_TABLE;
(void)strlcpy(cattr, "Bl-column", sizeof(cattr));
break;
default:
abort();
}
if (bl->offs != NULL)
(void)strlcat(cattr, " Bd-indent", sizeof(cattr));
if (bl->comp)
(void)strlcat(cattr, " Bl-compact", sizeof(cattr));
print_otag_id(h, elemtype, cattr, n->body);
return 1;
}

static int
mdoc_ex_pre(MDOC_ARGS)
{
if (roff_node_prev(n) != NULL)
print_otag(h, TAG_BR, "");
return 1;
}

static int
mdoc_st_pre(MDOC_ARGS)
{
print_otag(h, TAG_SPAN, "c", "St");
return 1;
}

static int
mdoc_em_pre(MDOC_ARGS)
{
print_otag_id(h, TAG_I, "Em", n);
return 1;
}

static int
mdoc_d1_pre(MDOC_ARGS)
{
switch (n->type) {
case ROFFT_BLOCK:
html_close_paragraph(h);
return 1;
case ROFFT_HEAD:
return 0;
case ROFFT_BODY:
break;
default:
abort();
}
print_otag_id(h, TAG_DIV, "Bd Bd-indent", n);
if (n->tok == MDOC_Dl)
print_otag(h, TAG_CODE, "c", "Li");
return 1;
}

static int
mdoc_sx_pre(MDOC_ARGS)
{
char *id;

id = html_make_id(n, 0);
print_otag(h, TAG_A, "chR", "Sx", id);
free(id);
return 1;
}

static int
mdoc_bd_pre(MDOC_ARGS)
{
char buf[20];
struct roff_node *nn;
int comp;

switch (n->type) {
case ROFFT_BLOCK:
html_close_paragraph(h);
return 1;
case ROFFT_HEAD:
return 0;
case ROFFT_BODY:
break;
default:
abort();
}

/* Handle preceding whitespace. */

comp = n->norm->Bd.comp;
for (nn = n; nn != NULL && comp == 0; nn = nn->parent) {
if (nn->type != ROFFT_BLOCK)
continue;
if (nn->tok == MDOC_Sh || nn->tok == MDOC_Ss)
comp = 1;
if (roff_node_prev(nn) != NULL)
break;
}
(void)strlcpy(buf, "Bd", sizeof(buf));
if (comp == 0)
(void)strlcat(buf, " Pp", sizeof(buf));

/* Handle the -offset argument. */

if (n->norm->Bd.offs != NULL &&
strcmp(n->norm->Bd.offs, "left") != 0)
(void)strlcat(buf, " Bd-indent", sizeof(buf));

if (n->norm->Bd.type == DISP_literal)
(void)strlcat(buf, " Li", sizeof(buf));

print_otag_id(h, TAG_DIV, buf, n);
return 1;
}

static int
mdoc_pa_pre(MDOC_ARGS)
{
print_otag(h, TAG_SPAN, "c", "Pa");
return 1;
}

static int
mdoc_ad_pre(MDOC_ARGS)
{
print_otag(h, TAG_SPAN, "c", "Ad");
return 1;
}

static int
mdoc_an_pre(MDOC_ARGS)
{
if (n->norm->An.auth == AUTH_split) {
h->flags &= ~HTML_NOSPLIT;
h->flags |= HTML_SPLIT;
return 0;
}
if (n->norm->An.auth == AUTH_nosplit) {
h->flags &= ~HTML_SPLIT;
h->flags |= HTML_NOSPLIT;
return 0;
}

if (h->flags & HTML_SPLIT)
print_otag(h, TAG_BR, "");

if (n->sec == SEC_AUTHORS && ! (h->flags & HTML_NOSPLIT))
h->flags |= HTML_SPLIT;

print_otag(h, TAG_SPAN, "c", "An");
return 1;
}

static int
mdoc_cd_pre(MDOC_ARGS)
{
synopsis_pre(h, n);
print_otag(h, TAG_CODE, "c", "Cd");
return 1;
}

static int
mdoc_fa_pre(MDOC_ARGS)
{
const struct roff_node *nn;
struct tag *t;

if (n->parent->tok != MDOC_Fo) {
print_otag(h, TAG_VAR, "c", "Fa");
return 1;
}
for (nn = n->child; nn != NULL; nn = nn->next) {
t = print_otag(h, TAG_VAR, "c", "Fa");
print_text(h, nn->string);
print_tagq(h, t);
if (nn->next != NULL) {
h->flags |= HTML_NOSPACE;
print_text(h, ",");
}
}
if (n->child != NULL &&
(nn = roff_node_next(n)) != NULL &&
nn->tok == MDOC_Fa) {
h->flags |= HTML_NOSPACE;
print_text(h, ",");
}
return 0;
}

static int
mdoc_fd_pre(MDOC_ARGS)
{
struct tag *t;
char *buf, *cp;

synopsis_pre(h, n);

if (NULL == (n = n->child))
return 0;

assert(n->type == ROFFT_TEXT);

if (strcmp(n->string, "#include")) {
print_otag(h, TAG_CODE, "c", "Fd");
return 1;
}

print_otag(h, TAG_CODE, "c", "In");
print_text(h, n->string);

if (NULL != (n = n->next)) {
assert(n->type == ROFFT_TEXT);

if (h->base_includes) {
cp = n->string;
if (*cp == '<' || *cp == '"')
cp++;
buf = mandoc_strdup(cp);
cp = strchr(buf, '\0') - 1;
if (cp >= buf && (*cp == '>' || *cp == '"'))
*cp = '\0';
t = print_otag(h, TAG_A, "chI", "In", buf);
free(buf);
} else
t = print_otag(h, TAG_A, "c", "In");

print_text(h, n->string);
print_tagq(h, t);

n = n->next;
}

for ( ; n; n = n->next) {
assert(n->type == ROFFT_TEXT);
print_text(h, n->string);
}

return 0;
}

static int
mdoc_vt_pre(MDOC_ARGS)
{
if (n->type == ROFFT_BLOCK) {
synopsis_pre(h, n);
return 1;
} else if (n->type == ROFFT_ELEM) {
synopsis_pre(h, n);
} else if (n->type == ROFFT_HEAD)
return 0;

print_otag(h, TAG_VAR, "c", "Vt");
return 1;
}

static int
mdoc_ft_pre(MDOC_ARGS)
{
synopsis_pre(h, n);
print_otag(h, TAG_VAR, "c", "Ft");
return 1;
}

static int
mdoc_fn_pre(MDOC_ARGS)
{
struct tag *t;
char nbuf[BUFSIZ];
const char *sp, *ep;
int sz, pretty;

pretty = NODE_SYNPRETTY & n->flags;
synopsis_pre(h, n);

/* Split apart into type and name. */
assert(n->child->string);
sp = n->child->string;

ep = strchr(sp, ' ');
if (NULL != ep) {
t = print_otag(h, TAG_VAR, "c", "Ft");

while (ep) {
sz = MIN((int)(ep - sp), BUFSIZ - 1);
(void)memcpy(nbuf, sp, (size_t)sz);
nbuf[sz] = '\0';
print_text(h, nbuf);
sp = ++ep;
ep = strchr(sp, ' ');
}
print_tagq(h, t);
}

t = print_otag_id(h, TAG_CODE, "Fn", n);

if (sp)
print_text(h, sp);

print_tagq(h, t);

h->flags |= HTML_NOSPACE;
print_text(h, "(");
h->flags |= HTML_NOSPACE;

for (n = n->child->next; n; n = n->next) {
if (NODE_SYNPRETTY & n->flags)
t = print_otag(h, TAG_VAR, "cs", "Fa",
"white-space", "nowrap");
else
t = print_otag(h, TAG_VAR, "c", "Fa");
print_text(h, n->string);
print_tagq(h, t);
if (n->next) {
h->flags |= HTML_NOSPACE;
print_text(h, ",");
}
}

h->flags |= HTML_NOSPACE;
print_text(h, ")");

if (pretty) {
h->flags |= HTML_NOSPACE;
print_text(h, ";");
}

return 0;
}

static int
mdoc_sm_pre(MDOC_ARGS)
{

if (NULL == n->child)
h->flags ^= HTML_NONOSPACE;
else if (0 == strcmp("on", n->child->string))
h->flags &= ~HTML_NONOSPACE;
else
h->flags |= HTML_NONOSPACE;

if ( ! (HTML_NONOSPACE & h->flags))
h->flags &= ~HTML_NOSPACE;

return 0;
}

static int
mdoc_skip_pre(MDOC_ARGS)
{

return 0;
}

static int
mdoc_pp_pre(MDOC_ARGS)
{
char *id;

if (n->flags & NODE_NOFILL) {
print_endline(h);
if (n->flags & NODE_ID)
mdoc_tg_pre(meta, n, h);
else {
h->col = 1;
print_endline(h);
}
} else {
html_close_paragraph(h);
id = n->flags & NODE_ID ? html_make_id(n, 1) : NULL;
print_otag(h, TAG_P, "ci", "Pp", id);
free(id);
}
return 0;
}

static int
mdoc_lk_pre(MDOC_ARGS)
{
const struct roff_node *link, *descr, *punct;
struct tag *t;

if ((link = n->child) == NULL)
return 0;

/* Find beginning of trailing punctuation. */
punct = n->last;
while (punct != link && punct->flags & NODE_DELIMC)
punct = punct->prev;
punct = punct->next;

/* Link target and link text. */
descr = link->next;
if (descr == punct)
descr = link; /* no text */
t = print_otag(h, TAG_A, "ch", "Lk", link->string);
do {
if (descr->flags & (NODE_DELIMC | NODE_DELIMO))
h->flags |= HTML_NOSPACE;
print_text(h, descr->string);
descr = descr->next;
} while (descr != punct);
print_tagq(h, t);

/* Trailing punctuation. */
while (punct != NULL) {
h->flags |= HTML_NOSPACE;
print_text(h, punct->string);
punct = punct->next;
}
return 0;
}

static int
mdoc_mt_pre(MDOC_ARGS)
{
struct tag *t;
char *cp;

for (n = n->child; n; n = n->next) {
assert(n->type == ROFFT_TEXT);
mandoc_asprintf(&cp, "mailto:%s", n->string);
t = print_otag(h, TAG_A, "ch", "Mt", cp);
print_text(h, n->string);
print_tagq(h, t);
free(cp);
}
return 0;
}

static int
mdoc_fo_pre(MDOC_ARGS)
{
struct tag *t;

switch (n->type) {
case ROFFT_BLOCK:
synopsis_pre(h, n);
return 1;
case ROFFT_HEAD:
if (n->child != NULL) {
t = print_otag_id(h, TAG_CODE, "Fn", n);
print_text(h, n->child->string);
print_tagq(h, t);
}
return 0;
case ROFFT_BODY:
h->flags |= HTML_NOSPACE;
print_text(h, "(");
h->flags |= HTML_NOSPACE;
return 1;
default:
abort();
}
}

static void
mdoc_fo_post(MDOC_ARGS)
{
if (n->type != ROFFT_BODY)
return;
h->flags |= HTML_NOSPACE;
print_text(h, ")");
h->flags |= HTML_NOSPACE;
print_text(h, ";");
}

static int
mdoc_in_pre(MDOC_ARGS)
{
struct tag *t;

synopsis_pre(h, n);
print_otag(h, TAG_CODE, "c", "In");

/*
* The first argument of the `In' gets special treatment as
* being a linked value. Subsequent values are printed
* afterward. groff does similarly. This also handles the case
* of no children.
*/

if (NODE_SYNPRETTY & n->flags && NODE_LINE & n->flags)
print_text(h, "#include");

print_text(h, "<");
h->flags |= HTML_NOSPACE;

if (NULL != (n = n->child)) {
assert(n->type == ROFFT_TEXT);

if (h->base_includes)
t = print_otag(h, TAG_A, "chI", "In", n->string);
else
t = print_otag(h, TAG_A, "c", "In");
print_text(h, n->string);
print_tagq(h, t);

n = n->next;
}

h->flags |= HTML_NOSPACE;
print_text(h, ">");

for ( ; n; n = n->next) {
assert(n->type == ROFFT_TEXT);
print_text(h, n->string);
}
return 0;
}

static int
mdoc_va_pre(MDOC_ARGS)
{
print_otag(h, TAG_VAR, "c", "Va");
return 1;
}

static int
mdoc_ap_pre(MDOC_ARGS)
{
h->flags |= HTML_NOSPACE;
print_text(h, "\\(aq");
h->flags |= HTML_NOSPACE;
return 1;
}

static int
mdoc_bf_pre(MDOC_ARGS)
{
const char *cattr;

switch (n->type) {
case ROFFT_BLOCK:
html_close_paragraph(h);
return 1;
case ROFFT_HEAD:
return 0;
case ROFFT_BODY:
break;
default:
abort();
}

if (FONT_Em == n->norm->Bf.font)
cattr = "Bf Em";
else if (FONT_Sy == n->norm->Bf.font)
cattr = "Bf Sy";
else if (FONT_Li == n->norm->Bf.font)
cattr = "Bf Li";
else
cattr = "Bf No";

/* Cannot use TAG_SPAN because it may contain blocks. */
print_otag(h, TAG_DIV, "c", cattr);
return 1;
}

static int
mdoc_igndelim_pre(MDOC_ARGS)
{
h->flags |= HTML_IGNDELIM;
return 1;
}

static void
mdoc_pf_post(MDOC_ARGS)
{
if ( ! (n->next == NULL || n->next->flags & NODE_LINE))
h->flags |= HTML_NOSPACE;
}

static int
mdoc_rs_pre(MDOC_ARGS)
{
switch (n->type) {
case ROFFT_BLOCK:
if (n->sec == SEC_SEE_ALSO)
html_close_paragraph(h);
break;
case ROFFT_HEAD:
return 0;
case ROFFT_BODY:
if (n->sec == SEC_SEE_ALSO)
print_otag(h, TAG_P, "c", "Pp");
print_otag(h, TAG_CITE, "c", "Rs");
break;
default:
abort();
}
return 1;
}

static int
mdoc_no_pre(MDOC_ARGS)
{
print_otag_id(h, TAG_SPAN, roff_name[n->tok], n);
return 1;
}

static int
mdoc_sy_pre(MDOC_ARGS)
{
print_otag_id(h, TAG_B, "Sy", n);
return 1;
}

static int
mdoc_lb_pre(MDOC_ARGS)
{
if (n->sec == SEC_LIBRARY &&
n->flags & NODE_LINE &&
roff_node_prev(n) != NULL)
print_otag(h, TAG_BR, "");

print_otag(h, TAG_SPAN, "c", "Lb");
return 1;
}

static int
mdoc__x_pre(MDOC_ARGS)
{
struct roff_node *nn;
const char *cattr;
enum htmltag t;

t = TAG_SPAN;

switch (n->tok) {
case MDOC__A:
cattr = "RsA";
if ((nn = roff_node_prev(n)) != NULL && nn->tok == MDOC__A &&
((nn = roff_node_next(n)) == NULL || nn->tok != MDOC__A))
print_text(h, "and");
break;
case MDOC__B:
t = TAG_I;
cattr = "RsB";
break;
case MDOC__C:
cattr = "RsC";
break;
case MDOC__D:
cattr = "RsD";
break;
case MDOC__I:
t = TAG_I;
cattr = "RsI";
break;
case MDOC__J:
t = TAG_I;
cattr = "RsJ";
break;
case MDOC__N:
cattr = "RsN";
break;
case MDOC__O:
cattr = "RsO";
break;
case MDOC__P:
cattr = "RsP";
break;
case MDOC__Q:
cattr = "RsQ";
break;
case MDOC__R:
cattr = "RsR";
break;
case MDOC__T:
cattr = "RsT";
break;
case MDOC__U:
print_otag(h, TAG_A, "ch", "RsU", n->child->string);
return 1;
case MDOC__V:
cattr = "RsV";
break;
default:
abort();
}

print_otag(h, t, "c", cattr);
return 1;
}

static void
mdoc__x_post(MDOC_ARGS)
{
struct roff_node *nn;

if (n->tok == MDOC__A &&
(nn = roff_node_next(n)) != NULL && nn->tok == MDOC__A &&
((nn = roff_node_next(nn)) == NULL || nn->tok != MDOC__A) &&
((nn = roff_node_prev(n)) == NULL || nn->tok != MDOC__A))
return;

/* TODO: %U */

if (n->parent == NULL || n->parent->tok != MDOC_Rs)
return;

h->flags |= HTML_NOSPACE;
print_text(h, roff_node_next(n) ? "," : ".");
}

static int
mdoc_bk_pre(MDOC_ARGS)
{

switch (n->type) {
case ROFFT_BLOCK:
break;
case ROFFT_HEAD:
return 0;
case ROFFT_BODY:
if (n->parent->args != NULL || n->prev->child == NULL)
h->flags |= HTML_PREKEEP;
break;
default:
abort();
}

return 1;
}

static void
mdoc_bk_post(MDOC_ARGS)
{

if (n->type == ROFFT_BODY)
h->flags &= ~(HTML_KEEP | HTML_PREKEEP);
}

static int
mdoc_quote_pre(MDOC_ARGS)
{
if (n->type != ROFFT_BODY)
return 1;

switch (n->tok) {
case MDOC_Ao:
case MDOC_Aq:
print_text(h, n->child != NULL && n->child->next == NULL &&
n->child->tok == MDOC_Mt ? "<" : "\\(la");
break;
case MDOC_Bro:
case MDOC_Brq:
print_text(h, "\\(lC");
break;
case MDOC_Bo:
case MDOC_Bq:
print_text(h, "\\(lB");
break;
case MDOC_Oo:
case MDOC_Op:
print_text(h, "\\(lB");
/*
* Give up on semantic markup for now.
* We cannot use TAG_SPAN because .Oo may contain blocks.
* We cannot use TAG_DIV because we might be in a
* phrasing context (like .Dl or .Pp); we cannot
* close out a .Pp at this point either because
* that would break the line.
*/
/* XXX print_otag(h, TAG_???, "c", "Op"); */
break;
case MDOC_En:
if (NULL == n->norm->Es ||
NULL == n->norm->Es->child)
return 1;
print_text(h, n->norm->Es->child->string);
break;
case MDOC_Do:
case MDOC_Dq:
print_text(h, "\\(lq");
break;
case MDOC_Qo:
case MDOC_Qq:
print_text(h, "\"");
break;
case MDOC_Po:
case MDOC_Pq:
print_text(h, "(");
break;
case MDOC_Ql:
print_text(h, "\\(oq");
h->flags |= HTML_NOSPACE;
print_otag(h, TAG_CODE, "c", "Li");
break;
case MDOC_So:
case MDOC_Sq:
print_text(h, "\\(oq");
break;
default:
abort();
}

h->flags |= HTML_NOSPACE;
return 1;
}

static void
mdoc_quote_post(MDOC_ARGS)
{

if (n->type != ROFFT_BODY && n->type != ROFFT_ELEM)
return;

h->flags |= HTML_NOSPACE;

switch (n->tok) {
case MDOC_Ao:
case MDOC_Aq:
print_text(h, n->child != NULL && n->child->next == NULL &&
n->child->tok == MDOC_Mt ? ">" : "\\(ra");
break;
case MDOC_Bro:
case MDOC_Brq:
print_text(h, "\\(rC");
break;
case MDOC_Oo:
case MDOC_Op:
case MDOC_Bo:
case MDOC_Bq:
print_text(h, "\\(rB");
break;
case MDOC_En:
if (n->norm->Es == NULL ||
n->norm->Es->child == NULL ||
n->norm->Es->child->next == NULL)
h->flags &= ~HTML_NOSPACE;
else
print_text(h, n->norm->Es->child->next->string);
break;
case MDOC_Do:
case MDOC_Dq:
print_text(h, "\\(rq");
break;
case MDOC_Qo:
case MDOC_Qq:
print_text(h, "\"");
break;
case MDOC_Po:
case MDOC_Pq:
print_text(h, ")");
break;
case MDOC_Ql:
case MDOC_So:
case MDOC_Sq:
print_text(h, "\\(cq");
break;
default:
abort();
}
}

static int
mdoc_eo_pre(MDOC_ARGS)
{

if (n->type != ROFFT_BODY)
return 1;

if (n->end == ENDBODY_NOT &&
n->parent->head->child == NULL &&
n->child != NULL &&
n->child->end != ENDBODY_NOT)
print_text(h, "\\&");
else if (n->end != ENDBODY_NOT ? n->child != NULL :
n->parent->head->child != NULL && (n->child != NULL ||
(n->parent->tail != NULL && n->parent->tail->child != NULL)))
h->flags |= HTML_NOSPACE;
return 1;
}

static void
mdoc_eo_post(MDOC_ARGS)
{
int body, tail;

if (n->type != ROFFT_BODY)
return;

if (n->end != ENDBODY_NOT) {
h->flags &= ~HTML_NOSPACE;
return;
}

body = n->child != NULL || n->parent->head->child != NULL;
tail = n->parent->tail != NULL && n->parent->tail->child != NULL;

if (body && tail)
h->flags |= HTML_NOSPACE;
else if ( ! tail)
h->flags &= ~HTML_NOSPACE;
}

static int
mdoc_abort_pre(MDOC_ARGS)
{
abort();
}